[Sketch] CC Animations: Torpedo the old intrusive animation system.

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index 54d3b90010e12db27ffc363347fa2b121cfa0c3c..91a72dcc38cb8f0755735d78066e1d48f68f75f2 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -232,10 +232,6 @@ void RenderWidgetCompositor::Initialize() {
   settings.accelerated_animation_enabled =
       !cmd->HasSwitch(cc::switches::kDisableThreadedAnimation);
   settings.use_display_lists = cmd->HasSwitch(switches::kEnableSlimmingPaint);
-  if (cmd->HasSwitch(switches::kEnableCompositorAnimationTimelines)) {
-    settings.use_compositor_animation_timelines = true;
-    blink::WebRuntimeFeatures::enableCompositorAnimationTimelines(true);
-  }
   if (cmd->HasSwitch(switches::kEnableBeginFrameScheduling) &&
       !widget_->for_oopif()) {
     // TODO(simonhong): Apply BeginFrame scheduling for OOPIF.
@@ -680,12 +676,6 @@ void RenderWidgetCompositor::didStopFlinging() {
   layer_tree_host_->DidStopFlinging();
 }
 
-void RenderWidgetCompositor::registerForAnimations(blink::WebLayer* layer) {
-  cc::Layer* cc_layer = static_cast<cc_blink::WebLayerImpl*>(layer)->layer();
-  cc_layer->RegisterForAnimations(layer_tree_host_->animation_registrar(),
-                                  layer_tree_host_->settings());
-}
-
 void RenderWidgetCompositor::registerViewportLayers(
     const blink::WebLayer* overscrollElasticityLayer,
     const blink::WebLayer* pageScaleLayer,